Journal
BIOTECHNOLOGY AND BIOENGINEERING
Volume 107, Issue 5, Pages 902-908Publisher
WILEY
DOI: 10.1002/bit.22879
Keywords
antibody; deglycosylation; IgG1; IgG4; in gel analysis; MALDI ToF-MS
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Funding
- Bioprocessing Research Industry Club (BRIC)
- UK BBSRC EPSRC
- BBSRC [BB/E005985/1, BB/G023581/2, BB/G023581/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/E005985/1, BB/G023581/2, BB/G023581/1] Funding Source: researchfish
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Recombinant monoclonal antibodies (MAbs) are increasingly being used for therapeutic use and correct glycosylation of these MAbs is essential for their correct function Glycosylation profiles are host cell and antibody class-dependent and can change over culture time and environmental conditions Therefore, rapid monitoring of glycan addition/status is of great importance for process validity We describe two workflows of generally applicability for glycan profiling of purified and gel-purified MAbs produced in NSO and CHO cells, in which small-scale, antibody purification and buffer exchange is combined with PNGase F gl) can cleavage and graphite HyperCarb desalting MALDI-1 oF mass spectrometry is used for sensitive detection of glycan forms with the ability to confirm glycan structures by selective ion fragmentation Both workflows are rapid, technically simple and amenable to automation, and use in multi-well formats Biotechnol Bioeng 2010,107 902-908 (C) 2010 Wiley Periodicals, Inc
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